Steel category and description of common bearing materials
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- Time of issue:2021-09-10 09:59
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(Summary description)Two: steel plate! According to the thickness, thick steel plate (thickness $% mm) and thin steel plate (thickness!% mm) "according to the purpose, it is divided into general steel plate, boiler steel plate, shipbuilding steel plate, automobile thick steel plate, general steel plate, roof steel plate, pickling steel plate, galvanized steel plate, tinned steel plate and other special steel plates.
Steel category and description of common bearing materials
(Summary description)Two: steel plate! According to the thickness, thick steel plate (thickness $% mm) and thin steel plate (thickness!% mm) "according to the purpose, it is divided into general steel plate, boiler steel plate, shipbuilding steel plate, automobile thick steel plate, general steel plate, roof steel plate, pickling steel plate, galvanized steel plate, tinned steel plate and other special steel plates.
- Categories:News
- Author:
- Origin:
- Time of issue:2021-09-10 09:59
- Views:
Information
1： Section steel. According to the section shape, it is divided into round steel, flat steel, square steel, hexagonal steel, octagonal steel, angle steel, I-steel, channel steel, T-steel, b-steel, etc.
Two: steel plate! According to the thickness, thick steel plate (thickness $% mm) and thin steel plate (thickness!% mm) "according to the purpose, it is divided into general steel plate, boiler steel plate, shipbuilding steel plate, automobile thick steel plate, general steel plate, roof steel plate, pickling steel plate, galvanized steel plate, tinned steel plate and other special steel plates.
III. the steel strip is divided into hot rolled steel strip and cold rolled steel strip according to the delivery status.
Four: steel pipe! According to the manufacturing method, it is divided into seamless steel pipe (including hot rolling and cold drawing) and welded steel pipe. "According to the purpose, it is divided into general steel pipe, water gas steel pipe, boiler steel pipe, petroleum steel pipe and other special copper pipes, etc. # according to the surface condition, it is divided into galvanized steel pipe and non galvanized steel pipe $according to the pipe end structure, it is divided into threaded steel pipe and non threaded steel pipe.
Five: steel wire! According to the processing method, it is divided into cold drawn steel wire and cold rolled steel wire. "According to the purpose, it is divided into general steel wire, binding steel wire, overhead communication steel wire, welding steel wire, spring steel wire, piano steel wire and other special steel wire, etc. # according to the surface conditions, it is divided into polished steel wire, polished steel wire, pickling steel wire, smooth steel wire, black steel wire, galvanized steel wire and other metal steel wire, etc.
Six: wire rope! According to the number of rope strands, it is divided into single strand steel rope, six strand steel rope and eighteen strand steel rope. "According to the inner core material, it is divided into organic core steel rope and metal core steel rope, etc. # according to the surface condition, it is divided into non galvanized steel rope and galvanized steel rope.
Relevant news
What is clearance and how to measure the clearance of rolling bearing?
1、 Original clearance
Clearance in free state before bearing installation. The original clearance is determined by the processing and assembly of the manufacturer.
2、 Installation clearance
Also known as fit clearance, it is the clearance when the bearing, shaft and bearing seat are installed but not working. Due to interference installation, either the inner ring is increased, or the outer ring is reduced, or both, the installation clearance is smaller than the original clearance.
3、 Working clearance
When the bearing is working, the inner ring has the maximum temperature rise and the maximum thermal expansion, which reduces the bearing clearance; At the same time, due to the load, the contact between the rolling element and the raceway produces elastic deformation, which increases the bearing clearance. Whether the bearing working clearance is larger or smaller than the installation clearance depends on the combined action of these two factors.
Some rolling bearings can not adjust the clearance, let alone disassemble. These bearings have six models, namely 0000 to 5000; Some rolling bearings can adjust the clearance, but can not be disassembled. There are 6000 type (angular contact bearing) and 1000, 2000 and 3000 type rolling bearings with conical holes in the inner ring. After adjustment, the installation clearance of these types of rolling bearings will be smaller than the original clearance; In addition, some bearings can be disassembled and the clearance can be adjusted. There are three types: 7000 (tapered roller bearing), 8000 (thrust ball bearing) and 9000 (thrust roller bearing). These three types of bearings do not have original clearance; For 6000 and 7000 type rolling bearings, the radial clearance is reduced, and the axial clearance is also reduced, and vice versa. For 8000 and 9000 type rolling bearings, only the axial clearance has practical significance.
1、 Original clearance
Clearance in free state before bearing installation. The original clearance is determined by the processing and assembly of the manufacturer.
2、 Installation clearance
Also known as fit clearance, it is the clearance when the bearing, shaft and bearing seat are installed but not working. Due to interference installation, either the inner ring is increased, or the outer ring is reduced, or both, the installation clearance is smaller than the original clearance.
3、 Working clearance
When the bearing is working, the inner ring has the maximum temperature rise and the maximum thermal expansion, which reduces the bearing clearance; At the same time, due to the load, the contact between the rolling element and the raceway produces elastic deformation, which increases the bearing clearance. Whether the bearing working clearance is larger or smaller than the installation clearance depends on the combined action of these two factors.
Some rolling bearings can not adjust the clearance, let alone disassemble. These bearings have six models, namely 0000 to 5000; Some rolling bearings can adjust the clearance, but can not be disassembled. There are 6000 type (angular contact bearing) and 1000, 2000 and 3000 type rolling bearings with conical holes in the inner ring. After adjustment, the installation clearance of these types of rolling bearings will be smaller than the original clearance; In addition, some bearings can be disassembled and the clearance can be adjusted. There are three types: 7000 (tapered roller bearing), 8000 (thrust ball bearing) and 9000 (thrust roller bearing). These three types of bearings do not have original clearance; For 6000 and 7000 type rolling bearings, the radial clearance is reduced, and the axial clearance is also reduced, and vice versa. For 8000 and 9000 type rolling bearings, only the axial clearance has practical significance.
Working condition and suffix meaning of fag self-aligning roller bearing for vibrating machinery
2021-09-10
The rolling bearing installed in the vibration exciter unit of these equipment must be able to withstand heavy load, high speed, acceleration and centrifugal force. Most of these applications work in very harsh environments, such as pollution and humidity. Fag's special self-aligning roller bearing is developed for vibration mechanical conditions and has achieved great success in practical application. In particular, the cage of rolling bearing must be able to withstand the force generated by high radial acceleration. Under worse working conditions, it may also bear the force generated by axial acceleration.
The rotation of the eccentric block will cause the deflection of the rotating shaft and the relative sliding inside the bearing. This will increase friction, resulting in an increase in bearing operating temperature. The dynamic centering capacity of special self-aligning roller bearing can reach 0.15 °. If you need to provide greater centering capability, please contact the industrial application engineer of Schaeffler Group. Basic design of FAG Special self-aligning roller bearing FAG Special self-aligning roller bearing series for vibration machinery is 223, and its main dimensions comply with e DIN 616: 1995-01 and ISO 15 standards. For the special stresses generated in vibrating machinery, FAG provides special self-aligning roller bearings with suffix t41a or t41d, which are described in section 1.5.
X-life self-aligning roller bearing 223-e1 series has very high bearing capacity by maximizing the use of bearing cross-section. For vibrating machinery, the inner diameter of X-life series self-aligning roller bearings available at present can reach 220 mm. 1.2. 1 X-life 223..- E1-t41a (d) series self-aligning roller bearing fag self-aligning roller bearing designed by E1 has no flange and has very high bearing capacity. FAG Special Bearing 223 with suffix t41a or t41d designed for vibrating machinery- E1 series also has this advantage, as shown in Figure 1. This is a new fag standard design for bearings with bearing diameters from 40 mm to 150 mm (bore series 08 to 30).
The rolling bearing installed in the vibration exciter unit of these equipment must be able to withstand heavy load, high speed, acceleration and centrifugal force. Most of these applications work in very harsh environments, such as pollution and humidity. Fag's special self-aligning roller bearing is developed for vibration mechanical conditions and has achieved great success in practical application. In particular, the cage of rolling bearing must be able to withstand the force generated by high radial acceleration. Under worse working conditions, it may also bear the force generated by axial acceleration.
The rotation of the eccentric block will cause the deflection of the rotating shaft and the relative sliding inside the bearing. This will increase friction, resulting in an increase in bearing operating temperature. The dynamic centering capacity of special self-aligning roller bearing can reach 0.15 °. If you need to provide greater centering capability, please contact the industrial application engineer of Schaeffler Group. Basic design of FAG Special self-aligning roller bearing FAG Special self-aligning roller bearing series for vibration machinery is 223, and its main dimensions comply with e DIN 616: 1995-01 and ISO 15 standards. For the special stresses generated in vibrating machinery, FAG provides special self-aligning roller bearings with suffix t41a or t41d, which are described in section 1.5.
X-life self-aligning roller bearing 223-e1 series has very high bearing capacity by maximizing the use of bearing cross-section. For vibrating machinery, the inner diameter of X-life series self-aligning roller bearings available at present can reach 220 mm. 1.2. 1 X-life 223..- E1-t41a (d) series self-aligning roller bearing fag self-aligning roller bearing designed by E1 has no flange and has very high bearing capacity. FAG Special Bearing 223 with suffix t41a or t41d designed for vibrating machinery- E1 series also has this advantage, as shown in Figure 1. This is a new fag standard design for bearings with bearing diameters from 40 mm to 150 mm (bore series 08 to 30).
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